package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;

@Service
@Slf4j
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }


    /**
     * 新增员工
     * @param employeeDTO
     */
    @Override
    public void save(EmployeeDTO employeeDTO) {
        Employee employee = new Employee();

        //拷贝对象属性
        BeanUtils.copyProperties(employeeDTO,employee);

        //状态设置 1(ENABLE) & 0(DISABLE) 默认为 1(启用)
        employee.setStatus(StatusConstant.ENABLE);

        //默认密码为123456(md5加密)
        employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));

        //修改时间 创建时间
        employee.setUpdateTime(LocalDateTime.now());
        employee.setCreateTime(LocalDateTime.now());

        //修改人 创建人

        Long id =  BaseContext.getCurrentId();
        employee.setUpdateUser(id);
        employee.setCreateUser(id);

        employeeMapper.insert(employee);

    }

    /**
     *
     *员工分页查询
     * @param employeePageQueryDTO
     * @return
     */
    @Override
    public PageResult page(EmployeePageQueryDTO employeePageQueryDTO) {
        log.info("调用 分页");
        //开始分页传入页码 和每页数目
        PageHelper.startPage(employeePageQueryDTO.getPage(),employeePageQueryDTO.getPageSize());
        //执行sql 分页插件启动
        Page<Employee> page = employeeMapper.page(employeePageQueryDTO);
        log.info("分页成功");
        //返回 查询数据
        PageResult result = new PageResult();
        //封装 总记录数 和 查询数据
        result.setTotal(page.getTotal());
        result.setRecords(page.getResult());
        return result;
    }

    /**
     * 修改员工状态
     * @param status
     * @param id
     */
    @Override
    public void status(Integer status, Integer id) {
        Employee employee = new Employee();
        employee.setStatus(status);
        employee.setId(Long.valueOf(id));
        employeeMapper.update(employee);
    }

    /**
     * 根据id查询数据
     * @param id
     * @return
     */
    @Override
    public Employee getemp(Long id) {
     Employee employee=  employeeMapper.selectbyid(id);
     employee.setPassword("*****");
        return employee;
    }


    /**
     * 修改用户
     * @param employeeDTO
     */
    @Override
    public void update(EmployeeDTO employeeDTO) {

        Employee employee = new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);
        //修改时间 修改人
        employee.setUpdateTime(LocalDateTime.now());
        employee.setUpdateUser(BaseContext.getCurrentId());
        employeeMapper.update(employee);
    }


}
